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Meena PL, Surela AK. Review on polyaniline-based nanocomposite heterogeneous catalysts for catalytic reduction of hazardous water pollutants. RSC Adv 2024; 14:26801-26819. [PMID: 39184004 PMCID: PMC11342828 DOI: 10.1039/d4ra02550d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 08/05/2024] [Indexed: 08/27/2024] Open
Abstract
Water contamination by highly toxic substances has generated serious ecological disturbances and health problems for humans. Hence, decontamination of toxic pollutants using advanced, inexpensive, and eco-friendly approaches is the current demand. Heterogeneous catalyst-based catalytic reduction processes have offered the opportunity to transform hazardous water pollutants into non-hazardous products via sustainable, eco-friendly, and efficient routes and might be a competitive substitute for existing traditional water purification techniques. However, the key challenges linked with pure heterogeneous catalysts include agglomeration and poor dispersion, stability, recovery, and reusability, which result in poor activity and efficiency. Thus, it is essential to produce multipurpose polymer-based composite catalysts using conducting polymers, which are exceptionally good supportive and matrix materials. The blending of metal-based nanomaterials with polyaniline conducting polymers produces highly stable and efficient heterogeneous nanocomposite catalysts with amazing catalytic activity against a wide range of water pollutants. The heterogeneous catalytic reductive degradation of immensely toxic pollutant water has gained substantial curiosity because of its excellent physicochemical and surface characteristics, porous structure, recoverability, and recyclability. Therefore, this review presents the latest efforts to generate various polyaniline-based nanocomposite catalysts using a polyaniline matrix and various nanofiller materials and their potential applications in heterogeneous catalytic reduction degradation of water pollutants.
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Affiliation(s)
| | - Ajay Kumar Surela
- Department of Chemistry, University of Rajasthan Jaipur 302004 India
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2
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Reaction Mechanism for the Removal of NO x by Wet Scrubbing Using Urea Solution: Determination of Main and Side Reaction Paths. Molecules 2022; 28:molecules28010162. [PMID: 36615356 PMCID: PMC9822094 DOI: 10.3390/molecules28010162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/18/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
Secondary problems, such as the occurrence of side reactions and the accumulation of by-products, are a major challenge in the application of wet denitrification technology through urea solution. We revealed the formation mechanism of urea nitrate and clarified the main and side reaction paths and key intermediates of denitrification. Urea nitrate would be separated from urea absorption solution only when the concentration product of [urea], [H+] and [NO3-] was greater than 0.87~1.22 mol3/L3. The effects of the urea concentration (5-20%) and reaction temperature (30-70 °C) on the denitrification efficiency could be ignored. Improving the oxidation degree of the flue gas promoted the removal of nitrogen oxides. The alkaline condition was beneficial to the dissolution process, while the acidic condition was beneficial to the reaction process. As a whole, the alkaline condition was the preferred process parameter. The research results could guide the optimization of process conditions in theory, improve the operation efficiency of the denitrification reactor and avoid the occurrence of side reactions.
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3
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Naz S, Bibi G, Jamil S, UrRehman S, Bibi S, Ali S, Khan T, Rauf Khan S, Janjua MRSA. Preparation of manganese-doped tin oxide nanoparticles for catalytic reduction of organic dyes. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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4
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González S, Porras M, Jimbo A, Zambrano CH. Dehydrochlorination of PCDDs on SWCN-Supported Ni10 and Ni13 Clusters, a DFT Study. Molecules 2022; 27:molecules27165074. [PMID: 36014314 PMCID: PMC9414052 DOI: 10.3390/molecules27165074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 07/31/2022] [Accepted: 08/08/2022] [Indexed: 11/16/2022] Open
Abstract
Polychlorinated dibenzo-p-dioxins (PCDDs) are known to be a group of compounds of high toxicity for animals and, particularly, for humans. Given that the most common method to destroy these compounds is by high-temperature combustion, finding other routes to render them less toxic is of paramount importance. Taking advantage of the physisorption properties of nanotubes, we studied the reactions of atomic hydrogen on physisorbed PCDDs using DFT; likewise, we investigated the reaction of molecular hydrogen on PCDDs aided by Ni10 and Ni13 clusters adsorbed on single-wall carbon nanotubes. Because dihydrogen is an easily accessible reactant, we found these reactions to be quite relevant as dehydrohalogenation methods to address PCDD toxicity.
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Affiliation(s)
- Silvia González
- Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, San Cayetano Alto, Calle Marcelino Champagnat s/n, Loja 110101, Ecuador
- Correspondence: ; Tel.: +593-7-370-1444
| | - Martha Porras
- Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, San Cayetano Alto, Calle Marcelino Champagnat s/n, Loja 110101, Ecuador
- Universidad Técnica de Machala, Av. Panamericana Km. 5 1/2 Vía a Pasaje, Machala 170526, Ecuador
| | - Arianna Jimbo
- Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, San Cayetano Alto, Calle Marcelino Champagnat s/n, Loja 110101, Ecuador
| | - Cesar H. Zambrano
- Departamento de Ingeniería Química, Universidad San Francisco de Quito, Pampite y Robles s/n Cumbayá, Quito 170901, Ecuador
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5
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Lin J, Dai Q, Zhao H, Cao H, Wang T, Wang G, Chen C. Photoinduced Release of Volatile Organic Compounds from Fatty Alcohols at the Air-Water Interface: The Role of Singlet Oxygen Photosensitized by a Carbonyl Group. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:8683-8690. [PMID: 33966388 DOI: 10.1021/acs.est.1c00313] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Photoinduced interfacial release of volatile organic compounds (VOCs) from surfactants receives emerging concerns. Here, we investigate the photoreaction of 1-nonanol (NOL) as a model surfactant at the air-water interface, especially for the important role of 1O2 in the formation of VOCs. The production of VOCs is real-time quantitated. The results indicate that the oxygen content apparently affects the total yields of VOCs during the photoreaction of interfacial NOL. The photoactivity of NOL is about 8 times higher under air than that under nitrogen, which is mainly attributed to the generation of 1O2. Additionally, the production of VOCs increased by about 4 times with the existence of the air-water interface. Quenching experiments of 1O2 also illustrate the contribution of 1O2 to VOC formation, which could reach more than 95% during photoirradiation of NOL. Furthermore, density functional theory calculations show that 1O2 generated via energy transfer of photosensitizers can abstract two hydrogen atoms from a fatty alcohol molecule. The energy barrier of this reaction is 72.3 kJ/mol, and its reaction rate coefficient is about 2.742 s-1 M-1. 1O2 significantly promotes photoinduced oxidation of fatty alcohols and VOC formation through hydrogen abstraction, which provides a new insight into the interfacial photoreaction.
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Affiliation(s)
- Jingyi Lin
- Beijing Engineering Research Center of Process Pollution Control, CAS Key Laboratory of Green Process and Engineering, Innovation Academy for Green Manufacture, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Qin Dai
- Beijing Engineering Research Center of Process Pollution Control, CAS Key Laboratory of Green Process and Engineering, Innovation Academy for Green Manufacture, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - He Zhao
- Beijing Engineering Research Center of Process Pollution Control, CAS Key Laboratory of Green Process and Engineering, Innovation Academy for Green Manufacture, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Hongbin Cao
- Beijing Engineering Research Center of Process Pollution Control, CAS Key Laboratory of Green Process and Engineering, Innovation Academy for Green Manufacture, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Tianyu Wang
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Guangwei Wang
- Department of Chemistry School of Science, Tianjin University, Tianjin 300072, China
| | - Chuncheng Chen
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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6
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Small LJ, Schindelholz ME, Nenoff TM. Hold on Tight: MOF-Based Irreversible Gas Sensors. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01266] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Leo J. Small
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | | | - Tina M. Nenoff
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
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7
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Wang D, Chen Q, Zhang X, Gao C, Wang B, Huang X, Peng Y, Li J, Lu C, Crittenden J. Multipollutant Control (MPC) of Flue Gas from Stationary Sources Using SCR Technology: A Critical Review. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:2743-2766. [PMID: 33569951 DOI: 10.1021/acs.est.0c07326] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The emission of gaseous pollutants from the combustion of fossil fuels is believed to be one of the most serious environmental challenges in the 21st century. Given the increasing demands of multipollutant control (MPC) via adsorption or catalysis technologies, such as NOx, volatile organic compounds (VOCs), heavy metals (Hg etc.), and ammonia, and considering investment costs and site space, the use of existing equipment, especially the selective catalytic reduction (SCR) system to convert pollutants into harmless or readily adsorbed substances, is one of the most practical approaches. Consequently, many efforts have been directed at achieving the simultaneous elimination of multipollutants in a SCR convertor, and this method has been widely used to mitigate the stationary emission of NOx. However, the development of active, selective, stable, and multifunctional catalysts/adsorbents suitable for large-scale commercialization remains challenging. Herein, we summarize recent works on the applications of SCR in MPC, describing the approaches of (i) SCR + VOCs oxidation, (ii) SCR + heavy metal control, and (iii) SCR + NH3 reduction to reveal that the efficiency of simultaneous elimination depends on catalyst composition and flue gas parameters. Furthermore, the synergistic promotional/inhibitory effects between SCR and VOCs/ammonia/heavy metal oxidations are shown to be the key to the feasibility of the reactions.
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Affiliation(s)
- Dong Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment, School of Environment, Tsinghua University, Beijing 100084, China
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering, Georgia Institute of Technology, 828 West Peachtree Street, Atlanta, Georgia 30332, United States
| | - Qiuzhun Chen
- National Engineering Laboratory for Coal-Burning Pollutants Emission Reduction, School of Energy and Power Engineering, Shandong University, Jinan 250061, China
| | - Xiang Zhang
- National Engineering Laboratory for Coal-Burning Pollutants Emission Reduction, School of Energy and Power Engineering, Shandong University, Jinan 250061, China
| | - Chuan Gao
- National Engineering Laboratory for Coal-Burning Pollutants Emission Reduction, School of Energy and Power Engineering, Shandong University, Jinan 250061, China
| | - Bin Wang
- National Engineering Laboratory for Coal-Burning Pollutants Emission Reduction, School of Energy and Power Engineering, Shandong University, Jinan 250061, China
| | - Xu Huang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment, School of Environment, Tsinghua University, Beijing 100084, China
| | - Yue Peng
- State Key Joint Laboratory of Environment Simulation and Pollution Control, National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment, School of Environment, Tsinghua University, Beijing 100084, China
| | - Junhua Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control, National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment, School of Environment, Tsinghua University, Beijing 100084, China
| | - Chunmei Lu
- National Engineering Laboratory for Coal-Burning Pollutants Emission Reduction, School of Energy and Power Engineering, Shandong University, Jinan 250061, China
| | - John Crittenden
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering, Georgia Institute of Technology, 828 West Peachtree Street, Atlanta, Georgia 30332, United States
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8
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Henkelis SE, Huber DL, Vogel DJ, Rimsza JM, Nenoff TM. Magnetic Tunability in RE-DOBDC MOFs via NO x Acid Gas Adsorption. ACS APPLIED MATERIALS & INTERFACES 2020; 12:19504-19510. [PMID: 32250585 DOI: 10.1021/acsami.0c01813] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The magnetic susceptibility of NOx-loaded RE-DOBDC (rare earth (RE): Y, Eu, Tb, Yb; DOBDC: 2,5-dihydroxyterephthalic acid) metal-organic frameworks (MOFs) is unique to the MOF metal center. RE-DOBDC samples were synthesized, activated, and subsequently exposed to humid NOx. Each NOx-loaded MOF was characterized by powder X-ray diffraction, and the magnetic characteristics were probed by using a VersaLab vibrating sample magnetometer (VSM). Lanthanide-containing RE-DOBDC (Eu, Tb, Yb) are paramagnetic with a reduction in paramagnetism upon adsorption of NOx. Y-DOBDC has a diamagnetic moment with a slight reduction upon adsorption of NOx. The magnetic susceptibility of the MOF is determined by the magnetism imparted by the framework metal center. The electronic population of orbitals contributes to determining the extent of magnetism and change with NOx (electron acceptor) adsorption. Eu-DOBDC results in the largest mass magnetization change upon adsorption of NOx due to more available unpaired f electrons. Experimental changes in magnetic moment were supported by density functional theory (DFT) simulations of NOx adsorbed in lanthanide Eu-DOBDC and transition metal Y-DOBDC MOFs.
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Affiliation(s)
- Susan E Henkelis
- Nanoscale Sciences Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Dale L Huber
- Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Dayton J Vogel
- Nanoscale Sciences Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Jessica M Rimsza
- Geochemistry Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Tina M Nenoff
- Material, Physical, and Chemical Sciences Center, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
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9
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Abstract
Since the late 1980s, the scientific community has been attracted to microwave energy as an alternative method of heating, due to the advantages that this technology offers over conventional heating technologies. In fact, differently from these, the microwave heating mechanism is a volumetric process in which heat is generated within the material itself, and, consequently, it can be very rapid and selective. In this way, the microwave-susceptible material can absorb the energy embodied in the microwaves. Application of the microwave heating technique to a chemical process can lead to both a reduction in processing time as well as an increase in the production rate, which is obtained by enhancing the chemical reactions and results in energy saving. The synthesis and sintering of materials by means of microwave radiation has been used for more than 20 years, while, future challenges will be, among others, the development of processes that achieve lower greenhouse gas (e.g., CO2) emissions and discover novel energy-saving catalyzed reactions. A natural choice in such efforts would be the combination of catalysis and microwave radiation. The main aim of this review is to give an overview of microwave applications in the heterogeneous catalysis, including the preparation of catalysts, as well as explore some selected microwave assisted catalytic reactions. The review is divided into three principal topics: (i) introduction to microwave chemistry and microwave materials processing; (ii) description of the loss mechanisms and microwave-specific effects in heterogeneous catalysis; and (iii) applications of microwaves in some selected chemical processes, including the preparation of heterogeneous catalysts.
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10
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Camposeco R, Castillo S, Nava N, Zanella R. Boosting of Soot Combustion on Alkaline Mn/ZrO2 Nanostructures. Top Catal 2020. [DOI: 10.1007/s11244-020-01224-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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11
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Ruiz-García C, Heras F, Calvo L, Alonso-Morales N, Rodríguez JJ, Gilarranz MA. N-Doped CMK-3 Carbons Supporting Palladium Nanoparticles as Catalysts for Hydrodechlorination. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b06084] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- C. Ruiz-García
- Chemical Engineering Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - F. Heras
- Chemical Engineering Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - L. Calvo
- Chemical Engineering Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - N. Alonso-Morales
- Chemical Engineering Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - J. J. Rodríguez
- Chemical Engineering Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - M. A. Gilarranz
- Chemical Engineering Department, Universidad Autónoma de Madrid, 28049 Madrid, Spain
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12
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Tong T, Chen J, Xiong S, Yang W, Yang Q, Yang L, Peng Y, Liu Z, Li J. Vanadium-density-dependent thermal decomposition of NH4HSO4 on V2O5/TiO2 SCR catalysts. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00900k] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The vanadium density influences the interaction between ABS and catalyst, thus changing the decomposition process of the ABS-related surface species.
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Affiliation(s)
- Tong Tong
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment
- Tsinghua University
- Beijing 100084
- China
- National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment
| | - Jianjun Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment
- Tsinghua University
- Beijing 100084
- China
- National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment
| | - Shangchao Xiong
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment
- Tsinghua University
- Beijing 100084
- China
- National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment
| | - Wenhao Yang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment
- Tsinghua University
- Beijing 100084
- China
- National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment
| | - Qilei Yang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment
- Tsinghua University
- Beijing 100084
- China
- National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment
| | - Lijun Yang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 10029
- China
| | - Yue Peng
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment
- Tsinghua University
- Beijing 100084
- China
- National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment
| | - Zhiming Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 10029
- China
| | - Junhua Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment
- Tsinghua University
- Beijing 100084
- China
- National Engineering Laboratory for Multi Flue Gas Pollution Control Technology and Equipment
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13
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Development of Sustainable Technology to Mitigate VOCs Pollution from Air Using a Continuous System Composed of Fe-ZSM-5 Coated on Polypropylene Tubes Coupled with UV Irradiation at the Pilot Scale. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8101920] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this work, the efficacy of volatile organic compounds (VOCs), such as benzene, toluene, ethylbenzene, and xylene, for the removal of indoor air in a heterogeneous photo-Fenton catalytic semi pilot reactor was investigated at room temperature. Fe-zeolite socony mobil (ZSM)-5 was used as the adsorptive catalytic material, which was coated on the polyethylene tubes as a solid support. The response of Fe-ZSM-5 to UV dry irradiation was investigated in terms of VOC degradation from the indoor air. Different coating materials were tested in order to achieve better binding and less pore blockage. Scanning electron microscope (SEM) micrographs of the Fe-ZSM-5 coated tubes were used for the morphological analysis of the tubes. A complete modular semi pilot reactor (12.51 L) was designed to accommodate the Fe-ZSM-5 coated tubes and UV lamps for UV irradiation, in order to achieve the degradation for VOC and the regeneration of the catalytic material. After completion of the setup, the plant design parameters, such as the linear velocity, surface volume loading rate (SVL), and space retention time (SRT), were calculated.
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14
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Gan L, Chen J, Peng Y, Yu J, Tran T, Li K, Wang D, Xu G, Li J. NOx Removal over V2O5/WO3–TiO2 Prepared by a Grinding Method: Influence of the Precursor on Vanadium Dispersion. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b04060] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lina Gan
- State
Key Laboratory of Multiphase Complex Systems, Institute of Process
Engineering, Chinese Academy of Sciences, Beijing 100190, China
- State
Key Joint Laboratory of Environment Simulation and Pollution Control,
School of Environment, Tsinghua University, Beijing 100084, China
| | - Jianjun Chen
- State
Key Joint Laboratory of Environment Simulation and Pollution Control,
School of Environment, Tsinghua University, Beijing 100084, China
| | - Yue Peng
- State
Key Joint Laboratory of Environment Simulation and Pollution Control,
School of Environment, Tsinghua University, Beijing 100084, China
| | - Jian Yu
- State
Key Laboratory of Multiphase Complex Systems, Institute of Process
Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Tuyetsuong Tran
- State
Key Laboratory of Multiphase Complex Systems, Institute of Process
Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Kezhi Li
- State
Key Joint Laboratory of Environment Simulation and Pollution Control,
School of Environment, Tsinghua University, Beijing 100084, China
| | - Dong Wang
- State
Key Joint Laboratory of Environment Simulation and Pollution Control,
School of Environment, Tsinghua University, Beijing 100084, China
| | - Guangwen Xu
- State
Key Laboratory of Multiphase Complex Systems, Institute of Process
Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Junhua Li
- State
Key Joint Laboratory of Environment Simulation and Pollution Control,
School of Environment, Tsinghua University, Beijing 100084, China
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15
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Ding L, Liu C, Chen K, Huang Y, Diao B. Atmospheric pollution reduction effect and regional predicament: An empirical analysis based on the Chinese provincial NO x emissions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 196:178-187. [PMID: 28284940 DOI: 10.1016/j.jenvman.2017.03.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 01/24/2017] [Accepted: 03/05/2017] [Indexed: 05/18/2023]
Abstract
Atmospheric pollution emissions have become a matter of public concern in recent years. However, most of the existing researches on NOx pollution are from the natural science and technology perspective, few studies have been conducted from an economic point, and regional differences have not been given adequate attention. This paper adopts provincial panel data from 2006 to 2013 and the LMDI model to analyze the key driving factors and regional dilemmas of NOx emissions. The results show that significant regional disparities still exit on NOx emissions and its reduction effect 27 provinces didn't accomplish their corresponding reduction targets. Economic development factor is the dominating driving factor of NOx emissions during the study period, while energy efficiency and technology improvement factors offset total NOx emissions in the majority of provinces. In addition, the industrial structure factor plays a more significant role in reducing the NOx emissions after 2011. Therefore, the government should consider all these factors as well as regional heterogeneity in developing appropriate pollution mitigating policies. It's necessary to change NOx emissions control attitude from original key areas control to divided-zone control, not only attaches great importance to the reduction of the original key areas, but also emphasizes the new potential hotspots with high NOx emissions.
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Affiliation(s)
- Lei Ding
- School of Industrial and Commercial, Ningbo Polytechnic, Ningbo, Zhejiang, 315800, China; Laboratory of Geographical Environment and National Park, China University of Geosciences, Wuhan, Hubei, 430074, China
| | - Chao Liu
- Laboratory of Geographical Environment and National Park, China University of Geosciences, Wuhan, Hubei, 430074, China; School of Public Administration, China University of Geosciences, Wuhan, Hubei, 430074, China.
| | - Kunlun Chen
- Faculty of Resources and Environmental Science, Hubei University, Wuhan, Hubei, 430062, China
| | - Yalin Huang
- Laboratory of Geographical Environment and National Park, China University of Geosciences, Wuhan, Hubei, 430074, China; School of Public Administration, China University of Geosciences, Wuhan, Hubei, 430074, China
| | - Beidi Diao
- Laboratory of Geographical Environment and National Park, China University of Geosciences, Wuhan, Hubei, 430074, China; School of Public Administration, China University of Geosciences, Wuhan, Hubei, 430074, China
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16
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Dutta T, Kim KH, Uchimiya M, Kumar P, Das S, Bhattacharya SS, Szulejko J. The micro-environmental impact of volatile organic compound emissions from large-scale assemblies of people in a confined space. ENVIRONMENTAL RESEARCH 2016; 151:304-312. [PMID: 27522568 DOI: 10.1016/j.envres.2016.08.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 08/06/2016] [Accepted: 08/08/2016] [Indexed: 06/06/2023]
Abstract
Large-scale assemblies of people in a confined space can exert significant impacts on the local air chemistry due to human emissions of volatile organics. Variations of air-quality in such small scale can be studied by quantifying fingerprint volatile organic compounds (VOCs) such as acetone, toluene, and isoprene produced during concerts, movie screenings, and sport events (like the Olympics and the World Cup). This review summarizes the extent of VOC accumulation resulting from a large population in a confined area or in a small open area during sporting and other recreational activities. Apart from VOCs emitted directly from human bodies (e.g., perspiration and exhaled breath), those released indirectly from other related sources (e.g., smoking, waste disposal, discharge of food-waste, and use of personal-care products) are also discussed. Although direct and indirect emissions of VOCs from human may constitute <1% of the global atmospheric VOCs budget, unique spatiotemporal variations in VOCs species within a confined space can have unforeseen impacts on the local atmosphere to lead to acute human exposure to harmful pollutants.
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Affiliation(s)
- Tanushree Dutta
- Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, South Korea
| | - Ki-Hyun Kim
- Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, South Korea.
| | - Minori Uchimiya
- USDA-ARS Southern Regional Research Center, 1100 Robert E. Lee Boulevard, New Orleans, LA 70124, United States
| | - Pawan Kumar
- Department of Chemical Engineering, Indian Institute of Technology, Hauz Khas, New Delhi 11016, India
| | - Subhasish Das
- Soil & Agro-Bioengineering Lab, Department of Environmental Science, Tezpur University, Napaam 784028, India
| | - Satya Sundar Bhattacharya
- Soil & Agro-Bioengineering Lab, Department of Environmental Science, Tezpur University, Napaam 784028, India
| | - Jan Szulejko
- Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, South Korea
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Allaedini G, Tasirin SM, Aminayi P. The effects of cerium doping concentration on the properties and photocatalytic activity of bimetallic Mo/Ce catalyst. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2016. [DOI: 10.1134/s0036024416080094] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Fu P, Zhang P. Characterization of Pt-TiO2 film used in three formaldehyde photocatalytic degradation systems: UV254 nm, O3+UV254 nm and UV254+185 nm via X-ray photoelectron spectroscopy. CHINESE JOURNAL OF CATALYSIS 2014. [DOI: 10.1016/s1872-2067(12)60740-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Wang S, Xing J, Zhao B, Jang C, Hao J. Effectiveness of national air pollution control policies on the air quality in metropolitan areas of China. J Environ Sci (China) 2014; 26:13-22. [PMID: 24649687 DOI: 10.1016/s1001-0742(13)60381-2] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Understanding the effectiveness of national air pollution controls is important for control policy design to improve the future air quality in China. This study evaluated the effectiveness of major national control policies implemented recently in China through a modeling analysis. The sulfur dioxide (SO2) control policy during the 11th Five Year Plan period (2006-2010) had succeeded in reducing the national SO2 emission in 2010 by 14% from its 2005 level, which correspondingly reduced ambient SO2 and sulfate (SO4(2-)) concentrations by 13%-15% and 8%-10% respectively over east China. The nitrogen oxides (NO(x)) control policy during the 12th Five Year Plan period (2011-2015) targets the reduction of the national NO(x) emission in 2015 by 10% on the basis of 2010. The simulation results suggest that such a reduction in NO(x) emission will reduce the ambient nitrogen dioxide (NO2), nitrate (NO3(-)), 1-hr maxima ozone (O3) concentrations and total nitrogen deposition by 8%, 3%-14%, 2% and 2%-4%, respectively over east China. The application of new emission standards for power plants will further reduce the NO2, NO3(-), 1-hr maxima O(3 concentrations and total nitrogen deposition by 2%-4%, 1%-6%, 0-2% and 1%-2%, respectively. Sensitivity analysis was conducted to evaluate the inter-provincial impacts of emission reduction in Beijing-Tianjin-Hebei and the Yangtze River Delta, which indicated the need to implement joint regional air pollution control.
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Arandiyan H, Dai H, Deng J, Wang Y, Xie S, Li J. Dual-templating synthesis of three-dimensionally ordered macroporous La0.6Sr0.4MnO3-supported Ag nanoparticles: controllable alignments and super performance for the catalytic combustion of methane. Chem Commun (Camb) 2013; 49:10748-50. [DOI: 10.1039/c3cc46312e] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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